Commit graph

15 commits

Author SHA1 Message Date
Gabe Black
1ed6a8ed79 Define and fill out a lot of different instructions and instruction versions. Added two of the shift microops.
--HG--
extra : convert_revision : 0b76953dbb1dc3366242d4d209cccebde86bbe4e
2007-07-20 16:39:07 -07:00
Gabe Black
0baae59c09 Fix carry flag for subtracts, and clean up code slightly.
--HG--
extra : convert_revision : 668f5d5aeba888488b41284de6c72a0d055c4ef4
2007-07-20 14:53:38 -07:00
Gabe Black
cfadef74d1 x86 fixes
Make the emulation environment consider the rex prefix.
Implement and hook in forms of j, jmp, cmp, syscall, movzx
Added a format for an instruction to carry a call to the SE mode syscalls system
Made memory instructions which refer to the rip do so directly
Made the operand size overridable in the microassembly
Made the "ext" field of register operations 16 bits to hold a sparse encoding of flags to set or conditions to predicate on
Added an explicit "rax" operand for the syscall format
Implemented syscall returns.

--HG--
extra : convert_revision : ae84bd8c6a1d400906e17e8b8c4185f2ebd4c5f2
2007-07-19 15:15:47 -07:00
Gabe Black
99310a1d93 Make instructions that conditionally set registers set them to their old value if they don't actually execute.
--HG--
extra : convert_revision : 36e63dd0c6ac1a3e1133c7985cf5507b83e9ee45
2007-07-18 17:46:38 -07:00
Gabe Black
b949458d4c Make the data size used by regops overridable in the microassembly.
--HG--
extra : convert_revision : 84d850aa5340c9d02d03502704b063215f6e2140
2007-07-18 16:26:17 -07:00
Gabe Black
a6757095c3 Add in support for condition code flags.
Some microops can set the condition codes, and some of them can be predicated on them. Some of the codes aren't implemented because it was unclear from the AMD patent what they actually did. They are used with string instructions, but they use variables IP, DTF, and SSTF which don't appear to be documented.

--HG--
extra : convert_revision : 2236cccd07d0091762b50148975f301bb1d2da3f
2007-07-17 15:33:18 -07:00
Gabe Black
4f7809d5e6 Pull some hard coded base classes out of the isa description.
--HG--
rename : src/arch/x86/isa/base.isa => src/arch/x86/isa/outputblock.isa
extra : convert_revision : 7954e7d5eea3b5966c9e273a08bcd169a39f380c
2007-07-14 17:14:19 -07:00
Gabe Black
efce09e958 Add in code that lays the ground work for setting flags.
--HG--
extra : convert_revision : e4fcb64d45804700a0ef34e8acf5615b66e2a527
2007-06-21 13:48:44 +00:00
Gabe Black
d2ccf5e509 More faithfulness to what instructions should work in what modes, and added the MOVSXD instruction.
--HG--
extra : convert_revision : 38b9bf6cd4bdec6355b1158967c7d3562715cacd
2007-06-19 22:40:10 +00:00
Gabe Black
d496492793 Make instructions that are illegal in 64 bit mode not do the wrong thing in 64 bit mode. Also add in more versions of PUSH and POP, and a version of near CALL.
--HG--
extra : convert_revision : 7d8266cdfa54ac25610466b3533d3e9e5433297b
2007-06-19 17:56:06 +00:00
Gabe Black
6c12577937 Add in incomplete pick and merge functions which read and write pieces of registers, and fill out microcode disassembly.
--HG--
extra : convert_revision : 56332b3999a9079b1bd305ee2826abdf593367e1
2007-06-18 14:15:00 +00:00
Gabe Black
dc13db8578 Fix the immediate version of register operations, and get their name to show up correctly.
--HG--
extra : convert_revision : 9fc36b99c9027e35f22983d5d1e22c940fa093de
2007-06-13 18:01:23 +00:00
Gabe Black
a7f3bbcfab Make microOp vs microop and macroOp vs macroop capitilization consistent.
src/arch/x86/isa/macroop.isa:
    Make microOp vs microop and macroOp vs macroop capitilization consistent. Also fill out the emulation environment handling a little more, and use an object to pass around output code.
src/arch/x86/isa/microops/base.isa:
    Make microOp vs microop and macroOp vs macroop capitilization consistent. Also adjust python to C++ bool translation.

--HG--
extra : convert_revision : 6f4bacfa334c42732c845f9a7f211cbefc73f96f
2007-06-12 16:21:47 +00:00
Gabe Black
1f7ed5b7b4 Big changes to use the new microcode assembler.
--HG--
extra : convert_revision : 7d1a43c5791a2e7e30533746da3dd7036a5b8799
2007-06-08 16:09:43 +00:00
Gabe Black
41bc0fc5b2 Reworking x86's microcode system. This is a work in progress, and X86 doesn't compile.
src/arch/x86/isa/decoder/one_byte_opcodes.isa:
src/arch/x86/isa/macroop.isa:
src/arch/x86/isa/main.isa:
src/arch/x86/isa/microasm.isa:
src/arch/x86/isa/microops/base.isa:
src/arch/x86/isa/microops/microops.isa:
src/arch/x86/isa/operands.isa:
src/arch/x86/isa/microops/regop.isa:
src/arch/x86/isa/microops/specop.isa:
    Reworking x86's microcode system

--HG--
extra : convert_revision : cab66be59ed758b192226af17eddd5a86aa190f3
2007-06-04 15:59:20 +00:00